| 甲醇对镁合金等离子体电解氧化过程的影响 |
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| 引用本文： | 罗渚草,陈砺,严宗诚,王红林. 甲醇对镁合金等离子体电解氧化过程的影响[J]. 腐蚀与防护, 2011, 0(6) |
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| 作者姓名： | 罗渚草 陈砺 严宗诚 王红林 |
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| 作者单位： | 华南理工大学化学与化工学院广东省绿色化学产品技术重点实验室; |
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| 基金项目： | 中央高校基本科研业务费专项资金资助(20092M0226); 教育部博士点基金(20090172120015)资助 |
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| 摘 要： | 以甲醇和水为混合溶剂,KOH、Na2SiO3为电解质,恒电压方式对AZ31镁合金进行等离子体电解氧化(PEO)处理,通过原子吸收分光光度计检测等离子体电解氧化处理后电解液中镁离子含量,研究甲醇对镁合金等离子体电解氧化过程的影响。结果表明,在等离子体电解氧化过程中,甲醇的加入影响镁合金PEO过程放电特性;随着甲醇浓度的增大,镁离子溶出量逐渐减少,耐点滴腐蚀、耐均匀腐蚀性能均有提高;甲醇的加入能有效降低PEO过程能耗,当溶剂中甲醇浓度为12%(体积分数)时,能耗比未加甲醇时降低42.9%。
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| 关 键 词： | 等离子体电解氧化 放电特性 甲醇 |
Effect of Methanol on Plasma Electrolytic Oxidation Process of Mg Alloy |
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| LUO Zhu-cao,CHEN Li,YAN Zong-cheng,WANG Hong-lin. Effect of Methanol on Plasma Electrolytic Oxidation Process of Mg Alloy[J]. Corrosion & Protection, 2011, 0(6) |
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| Authors: | LUO Zhu-cao CHEN Li YAN Zong-cheng WANG Hong-lin |
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| Affiliation: | LUO Zhu-cao,CHEN Li,YAN Zong-cheng,WANG Hong-lin(South China University of Technology,Guangdong Provincial Laboratory of Green Chemical Technology,Guangzhou 510640,China) |
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| Abstract: | The effect of methanol on the discharge characteristic of plasma electrolytic oxidation(PEO) of magnesium alloy AZ31 was investigated by constant voltage mode in electrolyte containing KOH,Na2SiO3,methanol and water.The amount of dissolved magnesium ions in the electrolyte was measured by atomic absorption spectrophotometer.The results showed that methanol had remarkable effect on the discharge characteristic of PEO of magnesium alloy.As the concentration of methanol increased,the amount of dissolved magnes... |
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| Keywords: | plasma electrolytic oxidation(PEO) discharge characteristic methanol |
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